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XPS Study of the Dehydration of Clay and Kaolin Powders



T N. Wittberg, P S. Wang


X-ray photoelectron spectroscopy (XPS) was used to analyze samples of a commercial clay powder and a kaolin standard. Samples were analyzed both in the as-received condition and after heating to temperatures > or = to} 750 degrees C. There was a loss of water during heating that showed that there was a decrease in the O / (Al + Si) ratio and a decrease of 0.2 eV to 0.3 eV in the aluminum Auger parameter value. The silicon Auger parameter value was unchanged after heating.
Surface and Interface Analysis
No. 10


Auger parameters, clay dehydration, x-ray photoelectron spectroscopy


Wittberg, T. and Wang, P. (1999), XPS Study of the Dehydration of Clay and Kaolin Powders, Surface and Interface Analysis (Accessed June 17, 2024)


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Created September 30, 1999, Updated October 12, 2021